3D models of sound propagating in shallow water Alexander Tshoidze Voronezh State University.
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Transcript of 3D models of sound propagating in shallow water Alexander Tshoidze Voronezh State University.
![Page 1: 3D models of sound propagating in shallow water Alexander Tshoidze Voronezh State University.](https://reader036.fdocuments.net/reader036/viewer/2022062803/56649f425503460f94c615eb/html5/thumbnails/1.jpg)
3D models of sound propagating in shallow water
Alexander Tshoidze
Voronezh State University
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50-200 m
Antenna
VerticalLinear array(VLA)at two depths
Range 10-100 km
source60-600Hz
Horizontallinear array (HLA)
Scheme of the shallow water problem model
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What model do we construct
Acoustical model
of intensity fluctuations
of sound propagating
in presence of
temperature front,
internal waves,
depth slopes
and other
waveguide obstacles.
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Polar front in the Barents sea
Oceanographic data was given by James F. Lynch fromWoods Hole Oceanographic Institution, MA, USA
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The chart of horizontal refraction in the area close to temperature front
Arctic current
Northern-Atlantic current
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My publications on the topic
1. B. Katsnelson, J. Lynch, A. Tshoidze Space-frequency distribution of sound field intensity in the neighborhood of a temperature front in shallow water // Acoustics Journal, August, 2007.
2. B. Katsnelson. A.Tshoidze, J.Lynch, Ta-Wei WangSpace frequency sound field distribution in the neighborhood of a temperature front // 147 Meeting Acoustical Society of America, San Diego, JASA, Vol. 116, Issue 4, 2004, Pp.2535-2536. 3. B. Katsnelson, J. Lynch, A. Tshoidze Space-frequency distribution of sound field intensity in the neighborhood of a temperature front in shallow water // XVII session of the Russian Acoustical Society, Moscow, Akustika Okeana, 2006, Pp. 92-95.
B. Katsnelson, A. Tshoidze – Voronezh State University, RussiaJ. Lynch, Ta-Wei Wang - Woods Hole Oceanographic Institution, Woods Hole, MA, USA
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My speech at the meeting on the topic
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Propagating of complex signal
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My publications on the topic
1. B. Katsnelson, M. Badiey, J. Lynch, A. Tshoidze Low frequency sound pulses propagation in shallow water // Proceedings of the 8th European conference on Underwater Acoustics, Portugal, 8th ECUA, 2006, Pp. 217-222с. 2. B. Katsnelson, M. Badiey, A. Song, A. Tshoidze Propagation of modulated pulses in shallow water // 150th Meeting Acoustical Society of America, Providence, USA, JASA, Vol. 119, Issue 5, 2006, p. 3346.
B. Katsnelson, A. Tshoidze – Voronezh State University, RussiaM. Badiey, A. Song - University of Delaware, DE, USA J. Lynch - Woods Hole Oceanographic Institution, Woods Hole, MA, USA
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Link to experiment Shallow Water Acoustic Remote
Measurements (SWARM’95)
New Jersey continental shelf, USA
A kind of data fromour American colleagues
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Correlation of our model with the experiment
Data processing …… and results!
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Delaware workshop on SWARM’95
April, 2005
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Delaware workshop is going on
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Future work
1. Creating complex sound field model, especially
phasefront model2. Comparing results of our
model with data of the experiment SWARM’06
Supported by CRDF VZ-010-0, RFFR 03-05-64568